Plasterer&#39;s non-callous hawk-bearing.



i J. N. GLEARY. PLASTERERS NON-OALLOUS HAWK BEARING. APPLICATION FILEDJAN. so, 1913.

1,059,035. Patented Apr. 15, 1913.

WITNESSES INVENTOR f I I y QWZIMWKJ/ COLUMBIA PLANOORAPHcoqwAsl-lmu'rou, u. c.

UNITED STATES PATENT. OFFICE.

JOSEPH N. CLEABY, 0F IBENTON, NEW JERSEY, AS SIGNOR QF -ONE-HALF '10vJOSEPH S. ZE ER, TREN ON, EW J S Y,

PLASTEREBS NON-QALLOUS HAWK-BEARING.

Patented Apr. 15, 1913,.

Serial N 0. 745,294.

To all whom it may concern:

Be it known that I, JOSEPH N. CLEARY', a citizen of the United States,residing at Trenton, in the county of Mercer and State of New Jersey,have invented certain new and useful Improvements in PlasterersNon-Callous Hawk-Bearings, of which the following is a specification.

The plasterers tool, commonly known as a hawk is a light flat board orplate about ten or twelve inches square which is provided on the underside with a short straight handle at right angles to the board. Thishawk is carried usually in the left hand ofthe plasterer with the plateor table surface horizontal and carrying piled up on the same the bodyof mortar which is taken from time to time on the trowel and applied tothe wall. The mortar being a rather heavy material, the weight on thetable of the hawk forces the table down against the knuckles of theforefinger and thumb and the almost constant movement of the plasterersbody when at work and the many awkward positions which he has to assumeand maintain in reaching to his work causes the table surface to rubagainst the knuckles of the hand supporting the hawk, forming hard callion the hand and sometimes sores, as the rubbing of lime into the skin isvery irritating.

This invention is designed to provide a simple, cheap and practicaldevice for relieving these conditions, and it consists in what may betermed a non-callous hawk bearing made in the form of a contractilesleeve of soft rubber which embraces the handle of the hawk immediatelyadjacent to and beneath the table of the hawk and has an outspreadingelastic flange bearing, of the same material, which extends out beneaththe hawk table and is preferably of a cellular character, and whichforms a cushion between the table and the knuckles of the operatershand, as will be hereinafter more full described with reference to thedrawing, in which:

Figure 1 is a side view of a hawk with the invention shown applied, theleft hand side being in side elevation and the right hand side insection through the table and the bearing, and Fig. 2 is an invertedplan View of the under side of the hawk, with the handle in crosssection.

In the drawing A represents the table surface of the hawk, on which themortar is carried. This table surface may be made either of a woodenboard, a metal plate, or any other material. To the middle of the lowerportion of the same is attached at right angles the usual short handle Bwhich may be connected in any suitable way.

C is the non-callous bearing. This is made preferably of soft rubberwith a sleeve portion 1, 2 and an outwardly spreading flange portion 3.The sleeve portion 1, 2 is made with a slightly smaller interiordiameter than the diameter of the hawk handle, so that the sleeve has tobe slightly expanded to slip it on the handle and up to place beneaththe table, and when in this position it contracts sufliciently to hugthe handle tightly and hold itself in place without any other specialfastening. The flanged portion 8 is of a shallow cup shape and extendsout in circular form a distance of from one to two inches from thehandle. The hollowed-out upper portion of the flange may be a continuouscircular chamber, if desired, but it is preferred to make a it of acellular character formed by a circular series of cells 4 separated bypartition walls, as this keeps it from being too soft and flabby andcollapsing under the weight of the mortar to too great an extent. At thesame time the cup-shaped form of the upper part or flange renders itsoft or yielding. This cup-shaped form also has other importantadvantages. First, the outer edge of the flange 3 extends up to themaximum height of the sleeve and always fits snug and close up to thebottom surface of the hawk table, so that no plaster or dirt can get inbetween it and the hawk table and thus destroy the cushion effect; and,secondly, the top part of the sleeve 2 is by the cup shape of the flangemade thin enough to readily expand and contract in fitting it on thehawk handle, which it would not do if the whole flange were made solidwithout air cushions. This construction gives by easy expansion ordistention a range of adjustment to hawk handles of different sizes, orwhich are worn from use, so as to make my bearing universally applicableand always hugs the handle and holds itself in place without droppingdown. The outer edge of the flange 3, it will be seen, is at the maximumheight of the bearing, while the inner edge of the flange joins thesleeve portion at a point below the upper edge of the sleeve, thusermitting the above results to be obtained? When this elastic bearing isin place around the handle and in contact with the lower surface of thetable of the hawk, the hand of the plasterer in grasping the handleclose up to the table has interposed between it and the table of thehawk the elastic cushion formed by the cellular flange 3, which relievesthe hand of. the severe pressure and friction of a hard surface andfully relieves the objection here inbefore named.

This invention is very simple and cheap, fits any hawk and is,therefore, universally applicable to all makes of hawks, can be made insizes to fit varying handles, and can be easily and quickly applied bythe plasterer himself.

I claim:

1. A hand bearing for a plasterers hawk, consisting of a contractiletubular sleeve adapted to fit over the handle and formed with aspreading elastic flange adapted to extend beneath the hawk table, theouter edge of the flange being of the maximum height of the sleeve andjoining the sleeve below its upper edge.

2. A hand bearing for a plaste'rers hawk, consisting of a tubularelastic sleeve adapted to fit over the handle and provided with aspreading elastic and cellular flange adapted to extend beneath the hawktable.

3. A hand bearing for a plasterers hawk, consisting of a tubular sleeveadapted to fit over the handle and formed with a spreading elasticflange adapted to extend beneath the hawk table, said sleeve and flangebeing made integral and of soft rubber, the sleeve being made expansibleand contractible to enable it to grip the handle and hold itself inplace and the upper surface of the flange being chambered.

4. A hand bearing for a plasterers hawk,

consisting of a tubular sleeve adapted to fit over the handle and formedwith a spreading elastic flange adapted to extend beneath the hawktable, said elastic flange being made integral with the sleeve and ofcellular construction.

5. A hawk for plasterers use, comprising a table surface, a handle atright angles to the same, and a hand bearing secured to the handleimmediately below the table and consisting of a contractile sleeveembracing the handle, and an elastic flange made integral with thesleeve and extending out from the sleeve and bearing againstthe underside of the table.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH N. OLEARY.

Witnesses:

HENRY GUENTHER, F. J. VoLz.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

. Washington, D. G.

